Dynamic range
Light falling on the photodiodes of the digital camera matrix is converted into an electrical signal. For this to happen, the number of photons that hit each individual photodiode must…

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Geographical latitude
I am writing this in the most temperate climate, being in the fifty-fourth degree of North latitude. In the southern regions, the light changes much faster, both in the morning…

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Can I fix the errors later?
As for the exhibition, no, you can't. Overexposure is not allowed in digital photography. Even if you shoot in RAW, the capabilities of RAW converters (contrary to the assurances of…

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imagination

What is bokeh?

Bokeh (English. bokeh; YAP. 暈け or ボケ – “blurring”) is a characteristic of the aesthetic qualities of the image area that lies out of focus, i.e. outside the grip area. Bokeh has nothing to do with sharpness: two lenses that depict objects in focus equally sharply can have a completely different blur pattern, the subjective artistic merits of which are described by the term bokeh.

An ideal lens from an engineering point of view focuses light from a point source in the form of a regular cone. When the tip of the cone touches the plane of the matrix or the camera film, the image is in focus and the photo gets an extremely small point. Continue reading

Can I fix the errors later?

As for the exhibition, no, you can’t. Overexposure is not allowed in digital photography. Even if you shoot in RAW, the capabilities of RAW converters (contrary to the assurances of the developers) are very limited in terms of pulling out the knocked-out lights. Underexposure is easier to fix, although the cost will be to increase the noise level in the shadows. The correct white balance setting is not critical when shooting in RAW – you can easily change the balance when converting. Correcting the wrong white balance in a JPEG file can be a very time-consuming, though feasible, task. However, I prefer to set the white balance as soon as possible, even when shooting in RAW. This allows me to more accurately assess the exposure on individual channels using a color histogram, and in addition, my images look more aesthetically pleasing even before converting to JPEG. Continue reading

Time of day

Not every beautiful scene always looks really beautiful. Moreover, as a rule, we must make a lot of effort, show patience and observation to show the subject in its best form.

In Studio shooting, when you are in full control of the situation, you can afford to take photos at any time convenient for you or your models. When you go out on the street, you must take into account the external lighting, which changes dramatically in one day.

The next two photos are taken at 12-hour intervals: Continue reading

The purpose of color correction
Color correction is a purposeful change in the color components of an image to achieve a better result. In other words, it is a substitution of the original color, tone,…

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Inverse square law
It is not superfluous to mention here also the law of inverse squares, the action of which you will certainly encounter. It sounds like this: the intensity of light is…

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Color balance
The colors of objects that we see are not a property of the objects themselves, but a property of our vision. Grass looks green only because light rays reflected from…

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